NIUNIU USB rechargeable heating insole: The heating insole adopts new heating technology, made of comfortable and comfortable EVA elastic material, has good cushioning, light and portable, comfortable heating, USB interface for heating through USB data cable, large heating area, even heat Distribution, temperature up to 42C/108C. Washable and rechargeable for use: This USB insole material is waterproof, washable and reusable, you can clean it with a brush, not machine washable, it should be noted that it should be dried after washing, and it must be completely dry before use. DiY Adjustable Insole Size: The electric insole can be cut to the size you need, it can be adjusted according to your shoe size, the shoe size range is given on the insole, it is convenient for you to DIY, the heated insole is 5mm thick, you don't need to worry about the size, the sole There are marked lines for easy cutting. Fits men and women US sizes 5-11. Wide usage and best gift Heated insoles keep your feet warm in the cold winter, the temperature is up to 42 C/108, so you can keep yourself warm no matter where you go, suitable for skiing and outdoor sports, others Sports, camping, housework, hunting, hiking, fishing, etc., are the best Christmas gifts. The shoe size range is given on the insole, which is convenient for you to DIY, the heated insole is 5mm thick, you don't need to worry about the size, there are marking lines on the insole, easy to cut. Fits men's and women's US sizes 5-11. Wide usage and best gift Heated insoles keep your feet warm in the cold winter, the temperature is up to 42 C/108, so you can keep yourself warm no matter where you go, suitable for skiing and outdoor sports, others Sports, camping, housework, hunting, hiking, fishing, etc., are the best Christmas gifts. The shoe size range is given on the insole, which is convenient for you to DIY, the heated insole is 5mm thick, you don't need to worry about the size, there are marking lines on the insole, easy to cut. Fits men's and women's US sizes 5-11. Wide usage and best gift Heated insoles keep your feet warm in the cold winter, the temperature is up to 42 C/108, so you can keep yourself warm no matter where you go, suitable for skiing and outdoor sports, others Sports, camping, housework, hunting, hiking, fishing, etc., are the best Christmas gifts. The sole is marked for easy cutting. Fits men and women US sizes 5-11. Wide usage and best gift Heated insoles keep your feet warm in the cold winter, the temperature is up to 42 C/108, so you can keep yourself warm no matter where you go, suitable for skiing and outdoor sports, others Sports, camping, housework, hunting, hiking, fishing, etc., are the best Christmas gifts. The sole is marked for easy cutting. Fits men and women US sizes 5-11. Wide usage and best gift Heated insoles keep your feet warm in the cold winter, the temperature is up to 42 C/108, so you can keep yourself warm no matter where you go, suitable for skiing and outdoor sports, others Sports, camping, housework, hunting, hiking, fishing, etc., are the best Christmas gifts.